linux-kernel - Re: [RFC][PATCH] exec: Fix use after free of tracepoint trace_sched_process

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Message-ID: <20140204213109.40dcfd28@gandalf.local.home>
Date:	Tue, 4 Feb 2014 21:31:09 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	David Smith <dsmith@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Igor Zhbanov <i.zhbanov@...sung.com>,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [RFC][PATCH] exec: Fix use after free of tracepoint
 trace_sched_process_exec

On Tue, 4 Feb 2014 16:57:31 -0800
Linus Torvalds <torvalds@...ux-foundation.org> wrote:


> How does this look?

Well, it is lacking a bit of the "ugly factor" but other than that,
I ran it through some minor tests (basically just logged in and enabled
the sched_process_exec tracepoint and ran a few programs and looked at
what would cause the previous bug). It passed.

I can run it through some more vigorous tests, but I think Al still
needs to really take a look at it.

Tested-by: Steven Rostedt <rostedt@...dmis.org>

(probably should keep)

Reported-by: Igor Zhbanov <i.zhbanov@...sung.com>

-- Steve
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